Question

The first side of a triangle is 2cm longer then the second side the third side is 5cm shorter than twice the second side . If the perimeter of the triangle is 49cm find the length of its side

Answer 1

Answer:

1st side=15 cm, 2nd=13, 3rd=21

Step-by-step explanation:

Let the second side of the triangle be=x

so the first side will be= x+2

and third side will be= 2x-5

According to the question,

x+2 + x + 2x-5 = 49

4x - 3 = 49

4x = 49 + 3

4x = 52

x = 52/4

x = 13

therefore we get the 2nd side= x = 13 cm

1st side = x+2 = 13+2= 15 cm

3rd side = 2x-5 = 2×13-5 = 26-5 = 21

hope this helps